Elevator system

ABSTRACT

An elevator system including an elevator car mounted to serve a plurality of landings in a structure. A car station is disposed in the car which includes a plurality of circuit modules, one for each landing. The circuit modules each include a pushbutton for registering a car call for its associated landing, and a memory element for storing the car call. The memory elements are connected in parallel with a common call bus, and the car calls are serialized directly from the circuit modules by accessing their memory elements in a predetermined sequence.

United States Paten Winkler et al. j

[ 51 Aug. 13, 1974 ELEVATOR SYSTEM [75] Inventors: Charles L. Winkler; Alan F. iffizfszr ig g g ggs gg Jr Mandel both of Pittsburgh Attorney, Agent, or Firm-D. R. Lackey [73] Assignee: Westinghouse Electric Corporation,

Pittsburgh, Pa. 57] ABSTRACT [22] Filed: 1973 An elevator system including an elevator car mounted [211 App]. No.:340,620 to serve a plurality of landings in a structure. A car station is disposed in the car which includes a plurality of circuit modules, one for each landing. The circuit {2%} modules each include a pushbutton for registering a d 187/29 car call for its associated landing, and a memory ele- 1e 0 are mem for storing the car can. The memory elements 56 R f d are connected in parallel with a common call bus, and I 1 e erences the car calls are serialized directly from the circuit UNITED STATES PATENTS modules by accessing their memory elements in a pre- 3,630,318 12/1971 Stichweh etal. 187/29 determined sequence. 3,739,880 6/1973 Robaszkiewicz 187/29 3,741,347 6/1973 Kirsch 187/29 13 Claims, 42 Drawlng Flgllres 7 BIT ADDRESS BUS I083 CALL OUTPUT BUS "I065 CALL SET BUS I087 CALL RESET BUS 0B .088 I089 EQUAUTU COMPARATOR '099 2X1? 1 I l (a) PUSHBUTTON AIDRESS 092 r' A P. 8. I098 INTERFACE LAMP INTERFACE I096 PATENTED 31974 3.828.892

SHEET 01 0F 27 IMING T 46 TIMING 1 ll CORRIDOR REMAINING CARS CALL SYSTEM 90F BANK I CONTROL PROCEssOR INTERFACE TIMING LIMIT CAR CALL SWITCHES CONTROL IN HATCHWAY 5 TIMING 34 T l I TO DOOR FLOOR I HALL 888 OPERATOR sELECTOR LANTERNs OPERATO i I 54 'MOTOR SPEED -\-,DISTANCE PATTERN PULSES CONTROLLER GENERATOR -FlG.l. L PuLsE DETECTOR\ 64 PULSE DETECTOR FIG.2. CORRIDOR B8 CALLS I H6 uPa DOWN CORRIDOR CALLs ABNORMAL 'E T 1 (PARALLEL) CONDITIONS IIs- I INHIeITs IPARALLELI INHIBITS(PARALLEL) I24- P OCEssOR |o o l26 ,II4' I I3O- I /-|36 l L I 1 T NO T I CAR CALLs SEClAECTAOR Up a DOWN I SELECTOR CAR CALLs CAR A CORRIDOR CALLs CAR B CAR B A \YIOG IO4 3 (PARALLEL) .LIOB- IIO FIG.4

PATENTEB AUG 1 3 I974 SHiU 02 0F 27 CO RIDOR (I38 CALLS ABNORMAL W II4 H6 H8 I I20 CONDITIONS T SER'AL'ZER I I SYSTEM I SERIALINHIBITS 4 I54 PROCESSOR 58 -SERIAL INHIBITS SERIAL UP CALLS ,I4S A B9 A, l F SERIAL I50 I S CAR CALLS SEL CTOR DOwN SELECTOR D CAR CALLS CAR A CAR A CALLS CAR 5 CAR 5 DS IO4' IOe' IIO' CORRIDOR I39 CALLS ABNORMAL EWT I g CONDITIONS SERIALIZER 2 SYSTEM 4 PROCESSOR l62 I v I66 ASSIGNMENT ASSIGNMENT I68 REGISTER REGISTER I "f CAR A CAR B FLOOR A ADDRESS A I WSJ C M A A R SCAN' B COM A A O P R TO COUNTER P R TOR I A=B IG4 I INHIBIT INHIBIT LOGIC LOGIC I50 I CAR CA LS SELECTOR SELECTOR CAR CALLS CAR A CAR A CAR 5 CAR 8 L106' IO4' H08 IIO' PAIENIED IIIII; I 3 I974 Iso FIG. 4B

CORRIDOR /II2 CALLS MU our 21 ABNORMAL CONDITIONS SERIALIZER SYSTEM PROCESSOR SCAN COUNTER ASSIGNMENT R EG(I:STER

A I COM PIERATOR f INHIBIT LOGIC Ass IGNMENT REGIBSTER A/I COMPABRATOR B\ f5 A S S IGNMENT REGISTER A A4 COMPARATOR SELE CTOR SELEITOR SELECTOR A FLOORS (SCAN SLOTS) I I I l FIG. 4C

DOWN CORRIDOR CALLS 2'2 ASSIGNMENT CAR A ASSIGNMENT CAR 5 -IIII ASSIGNMENT CAR INHIBIT AR A L IIL WIT-CAR B I TWT-CARC. I

'PATENTED W51 31974 3,828,892

SHEU 0'; 0f 27 CORRIDOR CALLS [I38 EMT 8O ABNORMAL CONDITIONS I86 I ADDRESS MODE/ I88 PROCESSOR E L 1 \MODE ASSIGNMENT ASSIGNMENT 9O REGISTER REGISTER CAR A CAR 8 I {A I I85 B SCAN B I87 C MPARATOR COUNTER- COMPARATOR A 81A=81 A 8 M A B PA=BFA 8 INHIBIT INHIBIT LOGIC LOGIC \92 u I I94 I I v T I CAR CALLS SELECTOR SELECTOR CAR CALLS CAR A CAR A CAR B CAR 8 \IO6 I04 I08 IIO FIG. 5

CORRIDOR I38 CA LS L ABNORMAL I CONDITIONS SERIALIZER SYSTEM l88 PROCESSOR ASSIGNMENT REGISTER ENABLEI CAR A LINE I85 I l64 SCAN COMPARATOR COUNTER READ ONLY MEMORY l73 9 *I CAR CALLS? IBI v I89 CAR A NAND NAND I83 I06 W ADVANCED CAR PAIENIEDIUGWBII 3.8.892

SHEET osnr21 I Egg 2 4 2921 JfiQQB.

IO 9 FIG.6.

7 6 up CORRIDOR CALL=I FLOOR ADDRESS 5 DOWN CORRIDOR CALL=I (FADO-FADG) 4 INHIBITED= 3 3* 2 UPSV DETERMINES WHETHER UP OR DOWN CORRIDOR CALLS ARE "SEEN' POSITION ,212 SYSTEM v PROCES EJCORRIDCR CALLS I RESET INFO RESETS/ '1218 F I G. 7.

CAR CALL RESET 2Q 2l4/ LOOR RESETS SELECTOR I I CAR /-2I6 PENTHOUSE CAR CALLS CONTROLLER g -xL -ggg A TRAVELING CABLE222 MULTIPLEXED MULTIPLEXED CARQAIZIZ sETs" -/CAR CAI I S a CAR SIGNALS I 228 CAR CALLS-SERIALIZED I PUSH BUTTONS, CAR SIGNALS MULTIPLEXER ORIES RESETS-SERIALIZED CAR CALL+OTHER CAR SIGNALS*| a 7 I FIG.. IO. MONITORING a COMMAND SICNALS- 7 EED LINK I TIME I--BASIC DATA TRANSMISSION CYCLE- TIMING DIAGRAM'DUAL DATA TRANSMISSION SYSTEM PAIENIEB III; I 3 I974 SHEEI us or 27 :2l2 F SYSTEM L PROCEss R CORRIDOR CALLS g g Q FIGB. FLOOR \RESET- R CALLS CONTROLLER A MuLTIPLExEb CAR CALL SETS Q \7222 MULTIPLEXED MULTIPLEXED Q P RESETS CAR CALLS 8. CAR SIGNALS l CAR CALLS-SERIALIZED CAR SIGNALS MuLTIPLExER II A E N?( l I S I w RESETS E x a sERIALIzER ICAR STATION 23g II AB'II OIS 236/ Y P s T MEMORIE S BI SER'AL SET 'N \RESETSSERIALIZED SE-RI ALIZ r CAR CALLS-SERIALIZED 234 sERI L sET LINE SYSTEM A PROCESSOR A .l L W ED MULTIPMEXED MASTER CAR "flf fi' v HIGH SPEED PENTHOUSE CONTROLLER F 474 LINKS r L'NKS I I CORRIDOR CAR CAR I CAR CAR I INTERFACE CONTROLLER: CONTROLLER CONTROLLER CONTROLLER 412g 1 2 464 I 466 468 I PUQETIQQONS \TIMETA \TIMEA .4 MULTIPLEXED MuLTIPLExED LOW SPEED Low SPEED LINKS LINKS 1 CAR -454 CAR 45s CAR .458 CAR 460 STAA'ION STAgION STA'ION sTAT ION PATENTED AUG 31974 saw 08 or 27 m2 m8 29m 23w 3 v L 1 wzm m I PATENTEDAUG 1 31974 sum 09 0F 27 mNGE PAIENTED mm 31914 sum 10 or 27 FIGJGB SERVICE IIQLBECTION SAC SBC

V UPSV DNSV TO NAND TO NAND CCAB CCBL 

1. An elevator system, comprising: a structure having a plurality of landings, an elevator car mounted for movement relative to the structure to serve the landings, and control means including a call bus, and a plurality of call circuits associated with predetermined landings, said plurality of call circuits each being connected to said call bus, each of said call circuits including means for registering a request for elevator service, a call memory element settable from a first condition to a second condition in response to a registered request for service, and including means for accessing said plurality of call circuits in a predetermined sequence with said call circuits outputting a signal to the call bus when accessed indicative of the condition of its call memory element, whereby a serial string of call signals are generated on the call bus.
 2. The elevator system of claim 1 including a reset bus connected to the plurality of call circuits, and reset means, said reset means providing a signal on said reset bus when a call memory element which is in its second condition is to be reset to its first condition, said reset signal resetting a set call memory element when the call circuit is accessed.
 3. The elevator system of claim 1 including scan counter means which repetitively counts through a predetermined group of numbers to provide a plurality of scan slots, with the landings of the structure being assigned to different scan slots, and wherein the means for accessing the call circuits advances from one call circuit to another call circuit each time the scan counter outputs a number assigned to a landing.
 4. The elevator system of claim 3 including reset means and a reset bus, said reset means providing a reset signal on the reset bus for a selected landing in the time slot assigned to the selected landing, wherein the plurality of call circuits are connected to said reset bus and a call memory element which has been set to its second condition is reset to its first condition by a reset signal in its associated time slot when the call circuit is accessed.
 5. The elevator system of claim 1 wherein each call circuit includes a ring counter memory element, and including means interconnecting the ring counter memory elements of the call circuits to provide a ring counter, with the means for accessing the call circuits including clock means for advancing a predetermined signal from one ring counter memory to the next, which predetermined signal accesses the call memory element.
 6. The elevator system of claim 5 including scan counter means which repetitively counts through a predEtermined group of numbers to provide a plurality of scan slots, with the landings of the structure being assigned to different scan slots, and wherein the clock means advances the ring counter each time the scan counter outputs a number assigned to a landing.
 7. The elevator system of claim 1 wherein each call circuit includes a lamp which is illuminated during the time its associated call memory element is set.
 8. The elevator system of claim 1 wherein the control means is car control means disposed in the elevator car and requests for elevator service include car call requests registered by passengers in the elevator car.
 9. The elevator system of claim 8 wherein the control means provides predetermined car signals in addition to car calls, and including multiplexing means for time multiplexing the serial car calls from the call bus with said predetermined car signals.
 10. The elevator system of claim 1 wherein each of the call circuits includes comparator means and means which provides an address signal which identifies the call circuit, and including an address bus and means providing different addresses on said address bus, said comparator means comparing its address signal with the address on said address bus and providing a signal which accesses its associated call memory when the address on the address bus is equal to the address of the call circuit.
 11. The elevator system of claim 1 wherein the means for registering a request for service is a push button, with the remaining portions of its associated call circuit being mounted directly behind the push button.
 12. The elevator system of claim 1 wherein the control means is car control means disposed in the elevator car and requests for service include car call requests, and including additional control means remote from the elevator car, said additional control means including means for registering requests for service which are also effective in setting a selected call memory element from its first to its second condition.
 13. The elevator system of claim 12 including scan counter means which repetitively counts through a predetermined group of numbers to provide a plurality of scan slots, with the landings of the structure being assigned to different scan slots, and wherein the means for accessing the call circuits advances from one call circuit to another call circuit each time the scan counter outputs a number assigned to a landing. 